One track session-engine knock
09-16-2018, 06:35 PM
#1
Junior Member
Thread Starter
One track session-engine knock
Was excited about my first HPDE with my 2001 CLK 55....About midway through the session the engine started making a racket-now I'm left with this. Will drain the oil and check for metallic. Anyone done a bottom end rebuild?
https://www.youtube.com/watch?v=Pl8P...ature=youtu.be
https://www.youtube.com/watch?v=Pl8P...ature=youtu.be
09-29-2018, 01:34 PM
#2
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2002 CLK 55 AMG cabriolet Eurocharged
Yep the rod and main bearings are not 19.99 like Chevy and Ford. They are hardened customized for AMG Forged Crankshaft. $$$$$$$$
Any folks with bottom end noise should park the car fast and mic the suspect before the car becomes a boneyard relic.
My 2 Cents
Any folks with bottom end noise should park the car fast and mic the suspect before the car becomes a boneyard relic.
My 2 Cents
09-30-2018, 02:36 PM
#3
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Thread Starter
I have avoided driving it and changed the oil yesterday-did not see any metallic in the drained oil. I'm wondering if the noise is coming from elsewhere. I have found a number of threads about these engines having a diesel like sound due to top end wear. Think I will remove valve covers and check the valve train next.
09-30-2018, 06:36 PM
#4
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2002 CLK 55 AMG cabriolet Eurocharged
Engine noises
Most noises from under the valve cover are clicking ticking and higher pitched rap.
a diesel knocking sound can be piston bushing.
You could attempt a cylinder kill 1 at a time with star diagnostics or remove one coil pack primary connection at a time.
a diesel knocking sound can be piston bushing.
You could attempt a cylinder kill 1 at a time with star diagnostics or remove one coil pack primary connection at a time.
10-01-2018, 11:38 AM
#5
MBWorld Fanatic!
Check your exhaust.
My c43 had a very similar noise, turned out to be a cracked exhaust header.
Most likely cracked from extra stress. Mine was cracked near the engine block where it bolts to it.
My c43 had a very similar noise, turned out to be a cracked exhaust header.
Most likely cracked from extra stress. Mine was cracked near the engine block where it bolts to it.
Last edited by PJmak; 10-01-2018 at 11:41 AM.
